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TPS61160ADRVT Datasheet(PDF) 1 Page - Texas Instruments

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No. de Pieza. TPS61160ADRVT
Descripción  TPS6116xA White LED Driver with PWM Brightness Control in 2-mm x 2-mm WSON Package
Descarga  31 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61160ADRVT Datasheet(HTML) 1 Page - Texas Instruments

 
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C1
38V MAX
VIN
SW
FB
GND
CTRL
COMP
C2
20 mA
TPS61161A
ON/OFF
DIMMING
CONTROL
V 3 V to 18 V
I
L1
22
H
m
1
F
m
C3
220 nF
R
10
set
W
1
F
m
L1: TDK VLCF5020T-220MR75-1
C1: Murata GRM188R61E105K
C2: Murata GRM21BR71H105K
D1: ONsemi MBR0540T1
D1
Product
Folder
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS61160A, TPS61161A
SLVS937C – MARCH 2009 – REVISED JULY 2016
TPS6116xA White LED Driver with PWM Brightness Control in
2-mm x 2-mm WSON Package
1
1 Features
1
Input Voltage Range: 2.7 V to 18 V
26-V Open LED Protection for TPS61160A
38-V Open LED Protection for TPS61161A
200mV Reference Voltage With ±2% Accuracy
PWM Interface for Brightness Control
Built-in Soft Start
Up to 90% Efficiency
2-mm × 2-mm × 0.8-mm 6-Pin WSON Package
With Thermal Pad
2 Applications
Cellular Phones
Portable Media Players
Ultra Mobile Devices
GPS Receivers
White LED Backlighting for Media Form Factor
Display
3 Description
With a 40-V rated integrated switch FET, the
TPS61160A/61A is a boost converter that drives
LEDs in series. The boost converter runs at 600-kHz
fixed switching frequency to reduce output ripple,
improve conversion efficiency, and allows for the use
of small external components.
The default white LED current is set with the external
sensor resistor Rset, and the feedback voltage is
regulated to 200 mV, as shown in the typical
application. During the operation, the LED current can
be controlled by a pulse width modulation (PWM)
signal applied to the CTRL pin through which the duty
cycle determines the feedback reference voltage. In
PWM dimming mode, the TPS61160A/61A does not
burst the LED current; therefore, it does not generate
audible noises on the output capacitor. For maximum
protection, the device features integrated open LED
protection that disables the TPS61160A/61A to
prevent the output from exceeding the absolute
maximum ratings during open LED conditions.
The TPS61160A/61A is available in a space-saving,
2-mm × 2-mm WSON package with thermal pad.
Device Information(1)
PART NUMBER PACKAGE
OPEN LED PROTECTION
TPS61160A
WSON (6)
TPS61160A use 26 V (typical)
TPS61161A
TPS61161A use 38 V (typical)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application of TPS61161A


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